<template>
    <div class="main">
        <a-form id="formLogin" class="user-layout-login" ref="formLogin" :form="form" @submit="handleSubmit">
            <a-tabs :activeKey="customActiveKey" :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }" @change="handleTabClick">
                <a-tab-pane key="tab1" tab="账号密码登录">
                    <a-alert v-if="isLoginError" type="error" showIcon style="margin-bottom: 24px" message="账户或密码错误" />
                    <a-form-item>
                        <a-input size="large" type="text" placeholder="账户: admin or super" v-decorator="[
                'username',
                { rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change' },
              ]">
                            <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }" />
                        </a-input>
                    </a-form-item>

                    <a-form-item>
                        <a-input size="large" type="password" autocomplete="false" placeholder="密码: 和账户名一致" v-decorator="['password', { rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur' }]">
                            <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }" />
                        </a-input>
                    </a-form-item>
                </a-tab-pane>
                <!-- <a-tab-pane key="tab2" disabled tab="手机号登录">
                    <a-form-item>
                        <a-input size="large" type="text" placeholder="手机号" v-decorator="[
                'mobile',
                { rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change' },
              ]">
                            <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }" />
                        </a-input>
                    </a-form-item>

                    <a-row :gutter="16">
                        <a-col class="gutter-row" :span="16">
                            <a-form-item>
                                <a-input size="large" type="text" placeholder="验证码" v-decorator="['captcha', { rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur' }]">
                                    <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }" />
                                </a-input>
                            </a-form-item>
                        </a-col>
                        <a-col class="gutter-row" :span="8">
                            <a-button class="getCaptcha" tabindex="-1" :disabled="state.smsSendBtn" @click.stop.prevent="getCaptcha" v-text="(!state.smsSendBtn && '获取验证码') || state.time + ' s'"></a-button>
                        </a-col>
                    </a-row>
                </a-tab-pane> -->
            </a-tabs>

            <a-form-item>
                <a-checkbox v-decorator="['rememberMe', { valuePropName: 'checked' }]" class="user-select-none">自动登录</a-checkbox>
                <a class="forge-password" style="float: right">忘记密码</a>
            </a-form-item>

            <a-form-item style="margin-top: 24px">
                <a-button size="large" type="primary" htmlType="submit" class="login-button" :loading="state.loginBtn" :disabled="state.loginBtn">确定</a-button>
            </a-form-item>
        </a-form>

        <two-step-captcha v-if="requiredTwoStepCaptcha" :visible="stepCaptchaVisible" @success="stepCaptchaSuccess" @cancel="stepCaptchaCancel"></two-step-captcha>
    </div>
</template>

<script>
import md5 from 'md5';
import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha';
import { mapActions } from 'vuex';
import { timeFix } from '@/utils/util';
import { getSmsCaptcha, get2step } from '@/api/user';

export default {
    name: 'userLogin',
    components: {
        TwoStepCaptcha,
    },
    data() {
        return {
            rememberMe: true,
            customActiveKey: 'tab1',
            loginBtn: false,
            // login type: 0 email, 1 username, 2 telephone
            loginType: 0,
            isLoginError: false,
            requiredTwoStepCaptcha: false,
            stepCaptchaVisible: false,
            form: this.$form.createForm(this),
            state: {
                time: 60,
                loginBtn: false,
                // login type: 0 email, 1 username, 2 telephone
                loginType: 0,
                smsSendBtn: false,
            },
        };
    },
    created() {
        get2step({})
            .then((res) => {
                this.requiredTwoStepCaptcha = res.result.stepCode;
            })
            .catch(() => {
                this.requiredTwoStepCaptcha = false;
            });
        // this.requiredTwoStepCaptcha = true
    },
    methods: {
        ...mapActions(['Login', 'Logout']),
        // handler
        handleUsernameOrEmail(rule, value, callback) {
            const { state } = this;
            const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/;
            if (regex.test(value)) {
                state.loginType = 0;
            } else {
                state.loginType = 1;
            }
            callback();
        },
        handleTabClick(key) {
            this.customActiveKey = key;
            // this.form.resetFields()
        },
        handleSubmit(e) {
            e.preventDefault();
            const {
                form: { validateFields },
                state,
                customActiveKey,
                Login,
            } = this;

            state.loginBtn = true;

            const validateFieldsKey =
                customActiveKey === 'tab1'
                    ? ['username', 'password']
                    : ['mobile', 'captcha'];

            validateFields(
                validateFieldsKey,
                { force: true },
                (err, values) => {
                    if (!err) {
                        console.log('login form', values);
                        const loginParams = { ...values };
                        delete loginParams.username;
                        loginParams[!state.loginType ? 'email' : 'username'] =
                            values.username;
                        loginParams.password = md5(values.password);
                        Login(loginParams)
                            .then((res) => this.loginSuccess(res))
                            .catch((err) => this.requestFailed(err))
                            .finally(() => {
                                state.loginBtn = false;
                            });
                    } else {
                        setTimeout(() => {
                            state.loginBtn = false;
                        }, 600);
                    }
                }
            );
        },
        getCaptcha(e) {
            e.preventDefault();
            const {
                form: { validateFields },
                state,
            } = this;

            validateFields(['mobile'], { force: true }, (err, values) => {
                if (!err) {
                    state.smsSendBtn = true;

                    const interval = window.setInterval(() => {
                        if (state.time-- <= 0) {
                            state.time = 60;
                            state.smsSendBtn = false;
                            window.clearInterval(interval);
                        }
                    }, 1000);

                    const hide = this.$message.loading('验证码发送中..', 0);
                    getSmsCaptcha({ mobile: values.mobile })
                        .then((res) => {
                            setTimeout(hide, 2500);
                            this.$notification['success']({
                                message: '提示',
                                description:
                                    '验证码获取成功，您的验证码为：' +
                                    res.result.captcha,
                                duration: 8,
                            });
                        })
                        .catch((err) => {
                            setTimeout(hide, 1);
                            clearInterval(interval);
                            state.time = 60;
                            state.smsSendBtn = false;
                            this.requestFailed(err);
                        });
                }
            });
        },
        stepCaptchaSuccess() {
            this.loginSuccess();
        },
        stepCaptchaCancel() {
            this.Logout().then(() => {
                this.loginBtn = false;
                this.stepCaptchaVisible = false;
            });
        },
        loginSuccess(res) {
            console.log(res);
            // check res.homePage define, set $router.push name res.homePage
            // Why not enter onComplete
            /*
      this.$router.push({ name: 'analysis' }, () => {
        console.log('onComplete')
        this.$notification.success({
          message: '欢迎',
          description: `${timeFix()}，欢迎回来`
        })
      })
      */
            this.$router.push({ path: '/' });
            // 延迟 1 秒显示欢迎信息
            setTimeout(() => {
                this.$notification.success({
                    message: '欢迎',
                    description: `${timeFix()}，欢迎回来`,
                });
            }, 1000);
            this.isLoginError = false;
        },
        requestFailed(err) {
            this.isLoginError = true;
            this.$notification['error']({
                message: '错误',
                description:
                    ((err.response || {}).data || {}).message ||
                    '请求出现错误，请稍后再试',
                duration: 4,
            });
        },
    },
};
</script>

<style lang="less" scoped>
.user-layout-login {
    label {
        font-size: 14px;
    }

    .getCaptcha {
        display: block;
        width: 100%;
        height: 40px;
    }

    .forge-password {
        font-size: 14px;
    }

    button.login-button {
        padding: 0 15px;
        font-size: 16px;
        height: 40px;
        width: 100%;
    }

    .user-select-none {
        user-select: none;
    }
}
</style>
